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Sauer, C.-D.; Ulrich, P.S.: Zuverlässige Brücke zu den Informationen im Netz : Von der Allgemeinen Auskunft der Amerika-Gedenkbibliothek zum Referat Informationsdienste der Zentral und Landesbibliothek Berlin (2004) 0.07

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Date: 8.10.2004 12:07:22
Source: BuB. 56(2004) H.10/11, S.673-677

Ulrich, P.S.: ¬Die Antwort ist irgendwo da draußen... : Kooperative Auskunft mit der Mailing-Liste 'Stumper-L' - Arbeitsweise und Erfahrungen (1997) 0.03

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Date: 12. 1.1998 21:14:56

Ulrich, P.S.: Collaborative Digital Reference Service : Weltweites Projekt (2001) 0.03

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Date: 20. 4.2002 17:30:22

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